manville



2 Sheets-Sheet 1.

E. J. MANVILLIL' MACHINE FOR MAKING SEWING MACHINE NEEDLES.

No 74,394. Patented Feb. 11, 186.8.

2 Sheets-Sheet 2.

E. J. MAN-VILLE. MACHINE FOR MAKING SEWING MACHINE NEEDLES.

No. 74,394. Patented Feb. 11, 1868.

gotten gtatss gaunt @ffite,

ELI J. MANVILLE OF WATERBURY, CONNECTICUT, ASSIGNOB. TO HIMSELF AND E.. M. JUDD, OF WOLCOTTVILLE, CONN ECTICUT,

Letters Patent No. 74,394, dated February 11, 1868.

IMPROVED MACHINE FOR MAKING SEWING-MACHINE NEEDLES.

tithe tit-truth mouth it! in these 3mm; Zittutt 511i] noting agent it its same.

TO ALL WHOM 11 MAY'CONCERN:

Be it known that I, EL]. J. MANVILLE, of Waterbury, in the county of New Haven, and State of Connecticut, have invented, made, nndapplied to use a certsin new and useful Improvement in Machines for Mal-ring Sewing- Machine Needles; and I do hero-by declare the following to be atoll, clear, and exact description of the said invention, reference being bad to the annexed drawing, making part of this specification, wherein-- Figure 1 is a. plan of the machine.

Figure 2 is a vertical sect-ion at the line '2 2:.

Figure 3 isan elevation of the cutter that reduces the wire inform the needle.

Figure 4 is an elevation of the clamping-die that holds the needle-blank.

Figure 5 is an elevation of the grooving-mechanism, the bed being in section.

' Similar marks of reference denote the same parts.

This invention relates to a machine in which the piece of steel wire forming the needle-blank is grasped by one of the jaws, in a series o'fjuws, moved ground progressively, the successive movements presenting the blank, first, to a cutter that turns oil' the metal to form the needle, the blank being revolved asthe cutter is moved up to it; second, to a grooving-tool that cuts the thread-grbovcjthird, to is second grooving-tool that cuts the groove on the other side of the needle; fourth, to a. punch that forms the necdlcs eye; fifth, to a polishing wheel, or to u pointingnvheel, or both, after which the needle is removedvfrom thsjaws.

By this machine, the needlcis made with great rapidity and accuracy, and without requiring' handling.

In the drawing, a is a. suitable frame or bed, upon which n hollow column, I, is attached, and supports at its upper end the circular bed 0, that carries the respective slides and tools hereafter enumerated, and also is provided with the cam-ring (1, within which is the revolving bed e, that carries the stocks f of the spindles g. This revolving bod e is upon a hollow axis, h, at the bottom of which is n ratchet-wheel, is, having the same number of teeth that there are stocks, f. I make use of any suitable pawl to operate on the rntchet-wheel k, and more the bed e, and parts it carries, periodically.

I have shown a. slide, Z, carrying a pawl, Z, that is acted upon by a pin in the disk m, on the shaft m.- -m is a. shaft and pinion 2, to rotate the wheel 3 and shaft m.

The spindles g are each provided with a-hcad,.rt, at one end, and n pinion, 0, at the other end, fitted to slide endwise on a feather or in h. groove, and the pinion has a. neck, 4, in which is the fork 5 of the slide 0'. 6 is a pin on the slide 0', entering a. cam-groove, 7, in the edge of the ring 01. This groove '(is so shsped that it allows a. spring, 8, to move the pinion 0 into contact with n revolving bevel-wheel, 11, on a. shaft, 12', that is rotated By compctent'power, but when the operation performed upon the needle carried by the spindleg is such that it requires to remain stationary, the cam-groove? draws the pinionulong endwise out of contact with the wheel 1. Each of-the spindles g is provided with a blank-holding clump, z', composed of two swinging nippers introduced in n slot in the head n. v

p The needle-blanks are supplied automatically, or by hand, into a groove in the upper and of a. slide, q, the

end of the blank projecting. This slide q is moved backwards and forwards by a cam, q, driven by the shaft g and gears, r 'r, 'und forces thejaus 2' together, so as to gripe the blank firuily that is placed between them. The slide 9 is then drawn back by a. spring, or other competent means, allowing" the blank and holder to be moved to the next position. a is a. stock, having a. hole through it that is of the same size as the wireblank, and on the outer side is a stationary cutting-tool, thnt is so adjusted as to turn all the proper amount of metal, and leave the needle of the desired size. The tooland stock are moved up over the wire-blank ssit is revolved. In order to move this stock .9, and the other sliding stocks hereafter-named, any suitable means may be employed,

I have shown a cunning, t, with teeth around its edge, gearing into the wheel 9, on the'shai't q, said camring moving within a flange surrounding the bed 0, and having a, corresponding number of coins to the number of stocks, f. A pin or projection, t, (see fig. 5,) on the under side of each of the sliding stocks, a, in contact with the cam on t, causes the movement of said stocks a, at the proper time. 

